Preparation and characteristics evaluation of mono and hybrid nano-enhanced phase change materials (NePCMs) for thermal management of microelectronics

Abstract

Efficient, clean and quiet thermal management has become a vital challenge in for cooling of electronic devices. To enhance the capability and efficiency of passive thermal management, novel composite materials have been designed by the combination of graphene nanoplatelets (GNPs), multiwall carbon nanotubes (MWCNTs), aluminium oxide (Al 2 O 3 ) and copper oxide (CuO) dispersed in the RT-28HC used as a phase change material (PCM). The series of mono and hybrid nano-enhanced phase change materials (NePCMs) were synthesized using constant mass fraction of 1.0 wt.% of each type of nanoparticles to establish the optimum NePCM in terms of thermal properties for efficient thermal management of microelectronics. Various material characteristic techniques such as ESEM, FT-IR, XRD, TGA, DTG, DCS, IRT and thermal conductivity apparatus were used and microstructure, chemical composition, crystallinity, thermal and phase-change heat transfer characteristics were investigated extensively for each sample of NePCM. The results showed good chemical and thermal stability of all NePCMs without changing the chemical structure of RT-28HC.The surface morphology and crystal formation analysis revealed the uniform dispersion of nanoparticles onto the surface of RT-28HC. In comparison of mono and hybrid NePCMs, the results showed the hybrid NePCM at GNPs/MWCTs mass percentage ratio of 75%/25% had the highest thermal conductivity enhancement of 96% compared to the pure PCM having optimum value of phase-change enthalpy of 245.18 J/g. Finally, enhancement in phase transition while melting and thermal properties evidenced that hybrid NePCMs can be used as potential candidate for the thermal management of microelectronics.

Thermophysical characteristics and application of metallic-oxide based mono and hybrid nanocomposite phase change materials for thermal management systems

“…With the development of nanotechnology, the heat and mass transfer in nanoconned systems such as nanofluid [5,6] and nano-composites brings novel insight for energy conversion and storage [7,8] which make a contribution in thermal management applications. The thermal energy storage (TES) systems based on heat storage materials have been used extensively for energy conversion, storage and transportation in thermal management applications of electronic devices, photovoltaic (PV) modules, Li-ion batteries systems etc.…”

“…Generally, there exists two major factors that cause the enhanced phenomenon of thermal conductance within the NCPCMs. Firstly, higher thermal conductivity of the nanoparticles and secondly the motion of the nanoparticles in NCPCMs in liquid-phase which causes a quasi-convection phenomenon[29,8].…”

Investigating the effect of single and hybrid nanoparticles on melting of phase change material in a rectangular enclosure with finite heat source

“…Industrialists have tried to miniaturize electronic systems while increasing power density, especially for high performance chips. In fact, the miniaturization of electronic components causes an increase in their working temperature and subsequently the challenge of cooling them 1 . To overcome this challenge, phase change materials (PCMs) are integrated in heat sinks for latent heat storage 2,3 .…”

“…This limitation can be overcome by adding nanoparticles inside the PCM in order to improve the thermal conductivity of the base material. Consequently, this technique was the concern of many researchers to reveal the effect of nanoparticles insertion on the thermal behavior of PCM‐based heat sinks 1 . Faraji et al 13 reported a computational investigation of the solid‐liquid transition in a rectangular heat sink filled with copper nanoparticles and PCM.…”

“…In fact, the miniaturization of electronic components causes an increase in their working temperature and subsequently the challenge of cooling them. 1 To overcome this challenge, phase change materials (PCMs) are integrated in heat sinks for latent heat storage. 2,3 These PCMs are integrated in numerous fields of applications like the thermal regulation of the building, 4 the thermal regulation of agricultural greenhouses.…”